Ask a Neurologist. Get Answers to Your Neurology Questions.
have you suffered any trauma to your head? are there any lesions on the scalp?
how often does this occur? how long does it last?
Are you in good health otherwise? if so, this would likely fall under the category of paroxysmal cephalgia. This is an intermittent and unexplained neuralgia involving a branch of either the trigeminal nerve innervating the front part of the vertex, or cranial nerve 1 innervating the back part.